EDUP EP-N1557 is a 802.11n USB Wireless adapter, it adopt the Realtek8192SU and transfer rate could be 300Mbps. This product can bed used to computer, PSP, media player and other device which need the wireless application. It can be settled to be an AP during installation so that can used to share the internet to other WiFi device. The WPS button makes the encryption to be very convenient. With the AUTO-RUN CD, even novice user can install it very easy and quickly